Home / 187,780.68-281,663.73-75,427.20

Finding the Fourth Proportional to 187,780.68, 281,663.73 and 75,427.20

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Solution

The fourth proportional to 187,780.68, 281,663.73 and 75,427.20 is: 113,137.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,780.68 : 281,663.73 = 75,427.20 : x
  2. Step 2: Convert to fraction form
    187,780.68/281,663.73 = 75,427.20/x
  3. Step 3: Cross multiply
    187,780.68x = 281,663.73 × 75,427.20
  4. Step 4: Simplify right side
    187,780.68x = 21,245,106,495.46
  5. Step 5: Solve for x
    x = 21,245,106,495.46/187,780.68
  6. Step 6: Final answer
    x = 113,137.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.